1) THE REALLY EARLY HARVEY STYLE ( STEVE MUFFATI?) It looks like a Famous studios animator drew it.
It's kinda formless like the cartoons but still somewhat cute.This has more form and appeal but still generic.
3) THE EARLY CUTE STYLE
I love this style. Is this Warren Kremer? It's very cute and stylish, more appealing than the earliest stuff.4 Lotta-another artist?
This one is a mystery to me, a very cool Hot Stuff cover.
5 Transition from late 50s to 60s?
These are still nice but are just starting to lose some appeal, getting a bit straighter or more mature style, less kid-appeal.
This one's nice!
The interiors are full of great Howie Post stuff, though.
6 60s mean style starting
Their heads and eyes start to shrink as time goes on...Casper starts to look like a burn-victim
Here come the hippies to ruin everything fun.
Mean style, plus adults with tiny heads and everyone's eyes too close together.